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首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.3: Design Engineering; Maintenance Engineering; Manufacturing Engineering; ... >MASS FINISHING OF PARTS PRODUCED BY DIRECT METAL LASER SINTERING
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MASS FINISHING OF PARTS PRODUCED BY DIRECT METAL LASER SINTERING

机译：直接金属激光烧结零件的质量精加工

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摘要

This paper presents some practical considerations on finishing of parts made by direct metal laser sintering (DMLS). The main process capabilities limitations of this promising rapid tooling technique are in fact in the surface roughness of the produced parts. This fact hinders the introduction of DMLS as a widely employed industrial process, especially for what concerns the production of moulds and inserts and allows their use only as preseries tools in injection moulding of plastics, since the requirements for preseries tools are worse than those needed during the process. Barrel finishing, in turn, is a well established technique to improve the roughness of parts of complicated shape by means of a soft mechanical action over the surface. The results herewith presented show that it is possible to achieve roughness of the order of 1 μm R_a even when starting from initial roughness of the order of 15 μm R_a, i.e. those typically attained by DMLS.
机译：本文提出了对直接金属激光烧结（DMLS）制成的零件进行精加工的一些实际考虑。实际上，这种有前途的快速加工技术的主要工艺能力限制实际上在于所生产零件的表面粗糙度。这一事实阻碍了DMLS作为一种广泛采用的工业工艺的引入，特别是对于涉及模具和嵌件生产的工艺而言，并且由于在生产过程中对预制工具的要求比在模具制造中所需的条件差，因此只能将它们用作塑料注塑成型中的预制工具。过程。反过来，滚筒精加工是一种成熟的技术，可以通过在表面上进行柔和的机械作用来改善复杂形状零件的粗糙度。由此给出的结果表明，即使从大约15μmR_a的初始粗糙度开始，即通常通过DMLS获得的粗糙度，也可以实现大约1μmR_a的粗糙度。

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